Análise da estabilidade de placas de materiais com gradação funcional usando uma abordagem isogeomética.

Abstract

Functionally Graded Materials (FGM) are composites that attract great interest for application in high-performance structures. FGM plates are structures with high slenderness, which makes them sensitive to stability problems, requiring a rigorous investigation of their behavior. The main objective of the present work is the stability analysis of FGM plates subjected to mechanical loading. To this end, a NURBS based isogeometric formulation was developed and implemented incorporating the geometric nonlinearity and the variation of the mechanical properties through the plate thickness. The formulation and computational implementation were validated by comparison with results obtained by the Finite Element Method and used in the study of the stability of MGF plates with different volume fraction variations.